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import com.sun.star.uno.UnoRuntime;
import com.sun.star.accessibility.XAccessible;
import com.sun.star.accessibility.XAccessibleContext;
import com.sun.star.accessibility.AccessibleRelation;
import com.sun.star.accessibility.XAccessibleRelationSet;
import com.sun.star.accessibility.AccessibleRelationType;
import com.sun.star.lang.IndexOutOfBoundsException;
import tools.NameProvider;
class AccessibleRelationHandler
extends NodeHandler
{
public NodeHandler createHandler( XAccessibleContext xContext )
{
AccessibleRelationHandler aHandler = null;
if (xContext != null)
{
XAccessibleRelationSet xRelation = xContext.getAccessibleRelationSet();
if (xRelation != null)
aHandler = new AccessibleRelationHandler(xContext);
}
return aHandler;
}
public AccessibleRelationHandler()
{
}
public AccessibleRelationHandler( XAccessibleContext xContext )
{
XAccessibleRelationSet xRelation = xContext.getAccessibleRelationSet();
if (xRelation != null)
maChildList.setSize( 1 );
}
public AccessibleTreeNode createChild( AccessibleTreeNode aParent,
int nIndex )
{
XAccessibleRelationSet xRelation = null;
AccessibleTreeNode aChild = null;
if( aParent instanceof AccTreeNode )
{
xRelation =
((AccTreeNode)aParent).getContext().getAccessibleRelationSet();
}
if( xRelation == null )
return aChild;
VectorNode aVNode = new VectorNode( "RelationSet", aParent);
int nCount = xRelation.getRelationCount();
try
{
for( int i = 0; i < nCount; i++ )
{
AccessibleRelation aRelation = xRelation.getRelation( i );
StringBuffer aBuffer = new StringBuffer();
aBuffer.append (NameProvider.getRelationName (aRelation.RelationType));
aBuffer.append( ": " );
for( int j = 0; j < aRelation.TargetSet.length; j++ )
{
Object aTarget = aRelation.TargetSet[j];
XAccessible xAccTarget =
(XAccessible)UnoRuntime.queryInterface(
XAccessible.class, aTarget );
if( xAccTarget == null )
{
aBuffer.append( aTarget.toString() );
}
else
{
aBuffer.append( xAccTarget.getAccessibleContext().
getAccessibleName() );
}
aBuffer.append( ", " );
}
aBuffer.delete( aBuffer.length() - 2, aBuffer.length() );
aVNode.addChild( new StringNode( aBuffer.toString(),
aParent ) );
}
aChild = aVNode;
}
catch( IndexOutOfBoundsException e )
{
aChild = new StringNode( "IndexOutOfBounds", aParent );
}
return aChild;
}
}
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